WO2016052415A1 - Absorbent article - Google Patents
Absorbent article Download PDFInfo
- Publication number
- WO2016052415A1 WO2016052415A1 PCT/JP2015/077340 JP2015077340W WO2016052415A1 WO 2016052415 A1 WO2016052415 A1 WO 2016052415A1 JP 2015077340 W JP2015077340 W JP 2015077340W WO 2016052415 A1 WO2016052415 A1 WO 2016052415A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- slit
- elastic member
- width direction
- absorber
- slits
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/49001—Absorbent articles specially adapted to be worn around the waist, e.g. diapers having preferential bending zones, e.g. fold lines or grooves
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/496—Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs
- A61F13/4963—Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs characterized by the seam
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/531—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad
- A61F13/532—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/535—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad, e.g. core absorbent layers being of different sizes
- A61F13/536—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad, e.g. core absorbent layers being of different sizes having discontinuous areas of compression
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/49007—Form-fitting, self-adjusting disposable diapers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/49007—Form-fitting, self-adjusting disposable diapers
- A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
- A61F13/49011—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located at the waist region
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
- A61F13/49406—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region
- A61F13/49413—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region the edge leakage prevention means being an upstanding barrier
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
- A61F13/5376—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterised by the performance of the layer, e.g. acquisition rate, distribution time, transfer time
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/496—Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs
- A61F2013/4966—Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs with intentionally damp topsheet
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F2013/530802—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium characterized by the foam or sponge other than superabsorbent
- A61F2013/530861—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium characterized by the foam or sponge other than superabsorbent having slit regions
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
- A61F2013/53765—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterized by its geometry
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
- A61F2013/53765—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterized by its geometry
- A61F2013/53769—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterized by its geometry with the wicking layer not contacting the absorbent core
- A61F2013/53773—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterized by its geometry with the wicking layer not contacting the absorbent core with a deformable spacing structure
Definitions
- the present invention relates to an absorbent article provided with an absorber having a slit.
- the fiber stacking apparatus 101 includes a defibrating apparatus 104 for finely pulverizing the raw pulp sheet 100, a pulverized pulp supply casing 108 surrounding the defibrating apparatus, and a downstream opening of the pulverized pulp supply casing 108. And a stacking drum 110 disposed on the surface.
- the pulverized pulp supply casing 108 constitutes the exterior of the chamber C for carrying the pulverized pulverized pulp on an air stream and transporting it to the outer peripheral surface of the downstream stacking drum.
- the pulverized pulp supply casing 108 is provided with a polymer supply port 106 for supplying the absorbent polymer P in the chamber C separately from the pulverized pulp.
- the fiber stacking drum 110 is formed with a breathable absorbent-molding concave portion having a fine mesh shape on one surface or a large number of fine holes formed on one surface at appropriate intervals on the outer peripheral surface,
- a suction means (not shown)
- the pulverized pulp conveyed in air in the recess for forming the absorber is mixed with the absorbent polymer. It is configured to be stacked.
- the absorbent body 13 made on the stacking drum 110 is converted into a positive pressure (“+” portion in the drawing) in the stacking drum 110 at the upper surface position of the packaging sheet 14 transported on the vacuum conveyor, and the vacuum device It is transferred by the suction by 149, conveyed on the conveyor, and sent as it is to the downstream processing step.
- a slit extending in the front-rear direction an elongated gap penetrating the absorbent body in the thickness direction is referred to at the intermediate portion in the width direction;
- an absorber having such a slit is conventionally formed at the slit forming position of the concave portion for forming the absorber of the piled drum, It has been manufactured by forming a convex portion protruding to the drum outer peripheral surface side by welding another member, suppressing the accumulation of fibers in this convex portion, and depositing fibers around the convex portion.
- the alternate long and short dash lines in the figure indicate the boundaries of the parts that are the individual absorbers.
- a slit is formed in the portion covered by the mask 120 because fibers are not deposited.
- an auxiliary pattern 122 extending in the lengthwise direction.
- an auxiliary pattern 122 extending from the main slit pattern 121 to the side of the absorber forming concave portion is necessary, and the absorber depends on the main slit pattern 121. Not only the first slit but also the second slit formed by the auxiliary pattern 122 will continue from the first slit to the side edge of the absorber.
- the main problem of the present invention is that both the liquid diffusibility and the fit in the absorber having the first slit extending in the front-rear direction and the second slit continuous from the first slit to the side edge toward the side. It is to improve.
- the present invention that has solved the above problems is as follows.
- ⁇ Invention of Claim 1> In an absorbent article provided with an absorber, In the intermediate portion in the width direction of the absorber, there is a first slit forming region in which one or more first slits extending in the front-rear direction are provided at intervals in the width direction; A second slit that is continuous from each of the front end side and the rear end side of the first slit forming region to the side edge toward both sides in the width direction is provided, An elastic member for a second slit is provided that intersects the continuous direction of the second slit and acts on a contraction force in a direction in which the second slit is closed; A disposable diaper characterized by that.
- the second slit is partially or completely closed by the contraction force of the second slit elastic member, and the longitudinal length on both sides in the width direction of the first slit forming region is shortened.
- the absorber is deformed into a boat shape. Accordingly, when the width of the second slit is reduced or both sides of the slit are in contact with each other, the liquid diffusibility in the direction crossing the second slit is improved, and the liquid diffusion in the direction along the second slit is suppressed, so-called.
- the first slit forming region is composed of two first slits provided at intervals in the width direction,
- the second slit is continuous from one first slit in the width direction to one side edge in the width direction of the absorber and the second slit is continuous from the other first slit in the width direction to the other side edge in the width direction of the absorber. Consisting of what to do, The disposable diaper according to claim 1.
- the main slit pattern is the auxiliary slit pattern (second slit and bridging in the mask at the time of manufacture described above).
- the main slit pattern can be supported more firmly because it can be supported from both sides in the width direction via the pattern for forming the slit).
- crosslinking slit is short, it is easy to become the above-mentioned boat shape.
- a three-dimensional gather that stands on the skin side is extended along the front-rear direction from the abdominal side to the back side on both sides in the width direction of the surface, and this three-dimensional gather has a three-dimensional gather elastic member that extends in the front-rear direction.
- a dedicated elastic member may be provided, but it is preferable to use the three-dimensional gather elastic member in this way.
- the second slit elastic member may be provided with a dedicated elastic member, but it is preferable to use the flat gather elastic member in this way.
- the elastic member for the second slit is provided with an elastic member extending in the front-rear direction so as to intersect the second slit on at least one of the front side and the back side of the absorber.
- FIG. 2 is a cross-sectional view taken along the line CC of FIG.
- FIG. 2 is a cross-sectional view taken along the line AA in FIG.
- FIG. 3 is a cross-sectional view taken along the line BB in FIG.
- It is a perspective view of the wearing state of a pants type disposable diaper. It is a top view which shows the cut pattern of an elastic member.
- the term “elongation rate” means a value when the natural length is 100%.
- the dot pattern part in a figure has shown joining means, such as a hot-melt-adhesive.
- 1 to 7 show a pants-type disposable diaper.
- This pants-type disposable diaper (hereinafter also simply referred to as a diaper) has an outer body 20 that integrally forms a front body F and a rear body B, and an inner surface of the outer body 20 so as to extend from the front body F to the rear body B.
- the interior body 10 has a fixed interior body 10 in which an absorber 13 is interposed between a liquid-permeable top sheet 11 and a liquid-impermeable back sheet 12.
- a joining means such as a hot-melt adhesive (dotted pattern portion in FIG. 2)
- the interior body 10 and the exterior body 20 are joined. Is folded at the center in the front-rear direction (vertical direction), which is the boundary between the front body F and the back body B, and both side portions thereof are joined to each other by heat welding or hot melt adhesive to form the side seal portion 21.
- a pants-type disposable diaper having a waist opening and a pair of left and right leg openings is formed.
- the interior body 10 has an absorbent body 13 interposed between a liquid-permeable top sheet 11 made of nonwoven fabric or the like and a liquid-impermeable back side sheet 12 made of polyethylene or the like.
- the excretory fluid that has permeated through the top sheet 11 is absorbed and retained.
- the planar shape of the interior body 10 is not particularly limited, it is generally a substantially rectangular shape as illustrated.
- a porous or non-porous nonwoven fabric or a porous plastic sheet is preferably used as the liquid-permeable surface sheet 11 covering the surface side (skin contact surface side) of the absorbent body 13.
- the material fibers that make up the nonwoven fabric can be synthetic fibers such as olefins such as polyethylene or polypropylene, polyesters, and polyamides, recycled fibers such as rayon and cupra, and natural fibers such as cotton.
- a nonwoven fabric obtained by an appropriate processing method such as a spun bond method, a thermal bond method, a melt blown method, or a needle punch method can be used. Among these processing methods, the spunlace method is excellent in terms of flexibility and drapeability, and the thermal bond method is excellent in terms of being bulky and soft.
- liquid permeable surface sheet 11 When a large number of through holes are formed in the liquid permeable surface sheet 11, urine and the like are quickly absorbed, and the dry touch property is excellent.
- the liquid permeable top sheet 11 is wound around the side edge of the absorber 13 and extends to the back side of the absorber 13.
- liquid-impermeable back sheet 12 that covers the back surface side (non-skin contact surface side) of the absorbent body 13 a liquid-impermeable plastic sheet such as polyethylene or polypropylene is used. Those having wettability are preferably used.
- This water-impervious / breathable sheet is a microporous sheet obtained by, for example, melt-kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene to form a sheet, and then stretching in a uniaxial or biaxial direction. is there.
- Absorbent body 13 is a known one, for example, a pulp fiber stack, a filament aggregate such as cellulose acetate, or a non-woven fabric, mixed with a superabsorbent polymer as necessary, fixed, etc. Can be used.
- the absorbent body 13 can be packaged with a wrapping sheet 14 having liquid permeability and liquid retention, such as crepe paper, if necessary, for holding the shape and polymer.
- the overall shape of the absorbent body 13 is formed in a substantially hourglass shape having a narrowed portion 13N having a narrower width than the front and rear sides at the crotch portion, but may have an appropriate shape such as a rectangular shape.
- the size of the constricted portion 13N can be determined as appropriate, but the length in the front-rear direction of the constricted portion 13N can be about 20 to 50% of the total length of the diaper, and the width of the narrowest portion is 40% of the total width of the absorber 13. It can be about 60%.
- the constricted portion 13N if the planar shape of the interior body 10 is substantially rectangular, the remainder of the interior body 10 that does not include the absorber 13 in the portion corresponding to the constricted portion 13N of the absorber 13. A part is formed.
- the three-dimensional gather BS that fits around the legs is formed on both sides of the interior body 10.
- the three-dimensional gather BS includes a fixed portion fixed to a side portion on the back surface of the interior body, and a side portion on the surface of the interior body from the fixed portion to the side of the interior body.
- the body part that extends to the front, the front and rear ends of the body part in a lying state, and the lying part that is fixed to the side of the surface of the interior body, and the freedom part that is formed with this lying part being unfixed
- the part is formed by a three-dimensional gathered sheet 15 which is a double sheet by folding.
- a non-woven fabric having water repellency is preferably used.
- an elongated three-dimensional gathered elastic member 16 is disposed at the tip of the free part.
- the three-dimensional gather elastic member 16 is for forming a three-dimensional gather BS by erecting a free portion protruding from the absorber side edge by an elastic stretching force as shown by a two-dot chain line in FIG. 5 in the product state.
- the liquid-impermeable back sheet 12 is folded back on the both sides in the width direction of the absorber 13 together with the liquid-permeable surface sheet 11.
- the liquid-impermeable back side sheet 12 it is desirable to use an opaque sheet so that brown such as defecation and urine does not appear.
- a plastic film and a pigment and filler such as calcium carbonate, titanium oxide, zinc oxide, white carbon, clay, talc and barium sulfate are preferably used.
- the gather elastic member 16 materials such as styrene rubber, olefin rubber, urethane rubber, ester rubber, polyurethane, polyethylene, polystyrene, styrene butadiene, silicon, polyester and the like that are usually used can be used. In order to make it difficult to see from the outside, it is preferable that the thickness is 925 dtex or less, the tension is 150 to 350%, and the interval is 7.0 mm or less.
- the gathered elastic member 16 may be a tape-like member having a certain width in addition to the thread-like shape shown in the figure.
- the material fibers constituting the three-dimensional gather sheet 15 are olefin-based, such as polyethylene or polypropylene, polyester-based, amide-based synthetic fibers, regenerated fibers such as rayon and cupra,
- Non-woven fabric obtained by an appropriate processing method such as a spunbond method, a thermal bond method, a melt blown method, a needle punch method, etc. can be used. It is preferable to use a non-woven fabric with a low basis weight and excellent air permeability.
- a silicon-based, paraffin metal-based, alkylchromic chromoid water repellent It is desirable to use a water-repellent non-woven fabric coated with such as.
- the outer package 20 has a two-layer structure including a press sheet 20A and a back sheet 20B each made of a nonwoven fabric or the like, and between the press sheet 20A and the back sheet 20B, and Various elastic members are disposed between the nonwoven fabrics of the folded portion 20C formed by folding the sheet 20B to the inner surface side at the waist opening edge, and elasticity is imparted.
- the planar shape has a pseudo hourglass shape as a whole by the concave leg surrounding lines 29 formed to form leg openings on both sides of the middle.
- the waist elastic member 24 disposed in the vicinity of the waist opening 23, the front body F, and the back body B, A plurality of waist lower part elastic members 25 arranged along the width direction at intervals in the vertical direction, and separately from the waist lower part elastic member group 25 in each of the front body F and the back body B, Extends from one side seal portion 21 along one leg opening toward the crotch portion, crosses the crotch portion, and curves in a pattern extending to the other side seal portion 21 along the other leg opening. And a plurality of curved elastic members 26 and 28 arranged at intervals without crossing each other.
- the waist elastic member 24 includes a plurality of thread rubbers and the like disposed in the vicinity of the waist opening edge in the vicinity of the waist opening edge in the range of the side seal portion 21 where the front body F and the back body B are joined. It is an elongate elastic member for attaching a diaper to the body by applying an expansion / contraction force so as to tighten around the torso of the body.
- rubber thread is used in the illustrated example.
- a tape-like elastic member may be used.
- the waist part elastic member 24 of the illustration form is clamped between the nonwoven fabrics of the folding
- the waist lower part elastic member 25 is an elongated elastic member such as rubber thread, which is disposed at intervals in the vertical direction over a range from the upper part to the lower part of the side seal part 21. This is for giving a stretchable force in the width direction to the waist circumference part of the back body B, so that the diaper is in close contact with the body.
- the boundary between the waist elastic member 24 and the waist lower elastic member 25 is not necessarily clear. For example, even if the number of the elastic members arranged in the width direction with the front body F and the back body B spaced apart in the vertical direction cannot be specified, some of the upper members function as the waist elastic members. The remaining elastic member only has to function as a waist lower part elastic member.
- the dorsal curved elastic member 26 disposed separately from the waist lower elastic member 25 is an elongated elastic member such as rubber thread, and is arranged along a predetermined curve.
- the elastic elastic members 26 are elongated elastic members such as four rubber threads. They are arranged at intervals without crossing.
- This dorsal curved elastic member group 26 is not arranged as a bundle of about two or three elastic members with a close interval, but 3 to 20 mm so as to form a predetermined elastic zone.
- 3 or more, preferably 4 or more are arranged with an interval of about 6 to 16 mm.
- the abdomen curved elastic member 28 arranged separately from the waist lower elastic member group 25 is an elongated elastic member such as rubber thread, and is arranged along a predetermined curve.
- the ventral curved elastic member 28 may be one, but is preferably a plurality.
- the illustrated example is four thread-like elastic members, and these ventral curved elastic members 28 do not cross each other. , Spaced apart.
- This ventral curved elastic member group 28 is also not arranged with a few bundles of substantially two or three elastic members at a close interval, but 3 to 20 mm so as to form a predetermined stretch zone.
- 3 or more, preferably 4 or more are arranged with an interval of about 6 to 16 mm.
- FIG. 8 mentioned later also understands, after the waist lower part elastic member 25 and the curved elastic members 26 and 28 arrange
- a part or all of the portion overlapping the interior body is cut into a non-shrinkable portion (that is, a portion overlapping the cutting pattern CP in FIG. 8) that is finely cut with a predetermined cutting pattern CP and does not act on the contraction force.
- a portion extending laterally from the portion is a contracted portion where contractive force acts (that is, the waist lower elastic member 25 and the curved elastic members 26 and 28 on the side of the cutting pattern CP in FIG. 8 are continuously left. Part).
- the waist lower part elastic member 25 and the curved elastic members 26 and 28 are continuously provided from the side seal part 21 on one side to the side seal part 21 on the other side (opposite side) across the interior body 10, Part or all of the portion overlapping with the interior body is finely cut. Thereby, the unnecessary shrinkage
- the waist lower part elastic member 25 and the curved elastic members 26, 28 can also be disposed continuously across the interior body 10.
- the above-described exterior body 20 can be manufactured by the techniques described in, for example, Japanese Patent Laid-Open Nos. 4-28363 and 11-332913. Further, in order to cut the curved elastic members 26 and 28 on the interior body 10 to make them discontinuous, it is described in JP-A-2002-35029, JP-A-2002-178428, and JP-A-2002-273808. A cutting method is preferably employed.
- the curved elastic members 26 and 28 may be provided only on one of the front body F and the back body B.
- the curved elastic members 26 and 28 are provided on both the front body F and the back body B, a part or all of the group of the curved elastic members 28 disposed on the front body F side and the back body B side are disposed.
- the group of curved elastic members 28 arranged on the front body F side as shown in the example A configuration in which the curved elastic members 26 arranged on the back body B side are separated from each other in the longitudinal direction at a position slightly deviated from the front-rear direction intermediate portion, particularly the front body F without crossing each other.
- curved elastic members 26 and 28 do not have to be curved as a whole, and may partially have linear portions.
- the elongation ratio when the elastic members 24 to 28 are fixed can be determined as appropriate. However, in the case of a normal adult, the waist elastic member 24 is about 160 to 320%, and the waist lower elastic member 25 is about 160 to 320%.
- the curved elastic members 26 and 28 can be about 230 to 320%.
- the front presser sheet 50 extends over the entire width direction from the inner surface of the folded portion 20C of the waist side end portion to the position overlapping the front end portion of the interior body 10 in the inner surface of the front body F.
- the rear presser sheet 60 extends across the entire width direction from the inner surface of the folded portion 20C at the end on the waist side to the position overlapping the rear end of the interior body 10 in the inner surface of the back body B.
- the folded portion 20C formed by folding the exterior body 20 on the inner surface of the diaper can be extended to a portion overlapping the interior body 10 to form a portion equivalent to the presser sheets 50 and 60 described above.
- one first slit 17 extending in the front-rear direction is formed in the intermediate portion in the width direction of the absorber 13, and the front end side of the first slit 17 and The second slits 18 that are continuous from each of the rear end sides to the side edges toward both sides in the width direction are provided, and the second slit elastic member 30 intersects the continuous direction of the second slits 18, and the second slits 18. Constitutes a contraction force acting in the closing direction. Thereby, in the absorber 13 of this embodiment, the second slit 18 is partially or completely closed as shown in FIG.
- the absorber 13 is deformed into a boat shape by being bent along the first slit 17 as shown in FIGS. 9B and 9C. Accordingly, when the width of the second slit 18 is narrowed or both sides of the slit are in contact with each other, liquid diffusibility in the direction crossing the second slit 18 is improved, and liquid diffusion in the direction along the second slit 18 is suppressed. Therefore, the so-called side leakage prevention effect is improved, and the deformation action of the first slit 17 and the second slit 18 is combined to form a boat shape as a whole. .
- the number of the second slits 18 is required to be two per side in the width direction (one for each front and rear), but three or more are provided at intervals in the front-rear direction as shown in FIGS. You can also. Further, the front-rear direction position of the second slit 18 is left-right symmetric, and as shown in FIG. 10, the front-rear direction position of the second slit 18 can be left-right asymmetric.
- two first slits 17 can also be provided at intervals in the width direction.
- the second slit 18 absorbs from one first slit 17 in the width direction. It consists of one that continues to one side edge in the width direction of the body 13 and one that continues from the other first slit 17 in the width direction to the other side edge in the width direction of the absorber 13.
- the first slits 17 are thus two, the region of the second slit 18 rises from the region between the first slits 17 to form a boat shape. Therefore, it becomes more excellent in fit.
- Three or more first slits 17 may be provided.
- the width from each of the front end side and the rear end side of the first slit forming region (that is, when there is only one first slit 17 or when there are a plurality of slits located between the most slits and the region between them).
- the 2nd slit 18 which continues to a side edge toward the direction both sides is provided.
- first slits 17 When two first slits 17 are provided, they do not need to be connected in the width direction as shown in FIG. 11A, but as shown in FIGS. 11B and 12A and 12B. It is preferable to provide a bridging slit 19 connected in the width direction. As a result, the two first slits 17 and the second slits 18 on both sides in the width direction are connected to each other. Therefore, the main slit pattern can be supported more firmly. When such a bridging slit 19 is provided, if the sum of the gap widths 19d of the bridging slits 19 is shorter than the sum of the gap widths 18d of the second slits 18, the aforementioned boat shape is likely to occur.
- the gap width 18d of the second slit 18 can be determined as appropriate. However, if it is too narrow, the above-described deformation action is reduced, and if it is too wide, the gap is greatly opened even in the above-described deformation state, and in the direction crossing the second slit 18. Since the liquid diffusibility is lowered, it is preferably about 3 to 8 mm, particularly about 3 to 5 mm. Further, the gap width 18d of the second slit 18 is preferably narrower than the gap width 17d of the first slit 17, but may be the opposite. Furthermore, the gap width 17d of the first slit 17 and the gap width 18d of the second slit 18 may be enlarged or reduced according to the position in the continuous direction.
- the first slit 17 and the second slit 18 extend linearly in the illustrated form, but may extend in a curved shape.
- the second slit 18 is located at the end portion in the front-rear direction (as opposed to the center in the front-rear direction as it goes to the side) as can be seen from the mask pattern in FIG. It may be provided along the diagonal direction. Even if the first slit 17 is inclined with respect to the front-rear direction, it is within the range of “extends in the front-rear direction” of the present invention.
- the position of the first slit forming region is not limited as long as the first slit forming region is provided in the intermediate portion in the width direction of the absorber 13, but normally the center in the width direction is desirable, and the width (in the case of one, the width of the first slit 17d). Is preferably 5 to 20% of the total width 13w of the absorber 13.
- the length of the first slit in the front-rear direction can be determined as appropriate, and can be, for example, about 30 to 70% of the total length of the absorber 13.
- the position of the first slit 17 can be determined as appropriate according to the size of the diaper. In a normal case, when the front end position of the absorber 13 is 0% and the rear end position of the absorber 13 is 100%,
- the position of one slit 17 is preferably 10 to 27%, particularly 12 to 25%.
- connection position of the second slit 18 with the first slit 17 may be located on the front end side and the rear end side of the first slit 17, but the front side and the rear side are preferable, so the first slit as shown in the figure. It is desirable to connect to the front end and rear end of the slit 17. Further, the second slit 18 is preferably located on both the front and rear sides from the viewpoint of preventing leakage, and is particularly preferably located on both front and rear ends of the constricted portion 13N of the absorber or on both front and rear sides.
- the elastic member 30 for 2nd slits crosses the continuous direction of the 2nd slit 18, and acts on contraction force in the direction which the 2nd slit 18 closes, it will be a part of elastic member attached for the other purpose Alternatively, in addition to using all of them, a dedicated elastic member can be provided.
- the second slit elastic member 30 is desirably orthogonal to the continuous direction of the second slit 18, but may be inclined with respect to the orthogonal direction as long as the contraction force acts in the direction in which the second slit 18 is closed. .
- the second slit elastic member 30 is preferably provided outside the center in the width direction of the second slit 18. In particular, it is more preferable that the second slit 18 is provided at a portion overlapping the side end portion or outside the second slit 18.
- the three-dimensional gather elastic member 16 is provided as a member that exerts a contracting force in a direction crossing the continuous direction of the second slit 18 and closing the second slit 18.
- the second slit elastic member 30 that functions as the second slit elastic member 30 and extends in the front-rear direction so as to intersect the second slit 18 on the back side of the absorber 13 is provided on the left and right sides of the first slit 17.
- the three-dimensional gather elastic member 16 is weak in contraction force acting on the second slit 18, the position relative to the second slit 18 is also preferable in that it is an essential member in current disposable diapers.
- the dedicated second slit elastic member 30 extending in the front-rear direction so as to intersect the second slit 18 on the back side of the absorber 13 has a contractive force directly acting on the second slit 18.
- it is provided between the three-dimensional gather sheet 15 in the fixing portion fixed to the back surface of the interior body 10, but the back surface of the interior body 10 and the three-dimensional gather are preferable.
- It can also be provided between the BS, between the interior body 10 and the exterior body 20, and conversely, it can also be provided between the front side of the absorber 13, for example, between the topsheet 11 and the absorber 13.
- the tape-type disposable diaper shown in FIGS. 13 and 14 and a large-sized pad-type disposable diaper have side flap portions SF projecting on both sides in the width direction of the absorbent body 13 and extend in the front-rear direction to the side flap portion SF.
- the flat gather elastic member 31 is often provided. Therefore, it is also a preferred embodiment that the planar gather elastic member 31 is caused to function as the second slit elastic member 30 by intersecting the continuous direction of the second slit 18.
- This tape-type disposable diaper also includes a three-dimensional gather elastic member 16 that intersects with the continuous direction of the second slit 18 and applies a contracting force in the direction in which the second slit 18 closes. It functions as the member 30.
- the other components are basically the same as those of the pants-type disposable diaper, and the same reference numerals are used in FIG. 13 and FIG.
- the contractive force acting range in the front-rear direction of the second slit elastic member 30 may be a range R1 including the entire front-rear direction of the absorber 13, or only a part of the front-rear ranges R2, R3 including the second slit 18. In the latter case, in addition to providing an integral contraction force action range R2 for the plurality of second slits 18, it is also possible to individually provide a contraction force action range R3 for each second slit 18. . In addition, as a method of setting the contracting force acting range of the second slit elastic member 30 only to a part of the front-rear direction ranges R2 and R3 including the second slit 18, the second slit elastic member 30 is only in this range. In addition to the above-described form, the second slit elastic member may be provided in a wider range including the range, and the stretchability may be killed by finely cutting outside the range.
- the present invention can be used for absorbent articles in general, such as pants-type disposable diapers as in the above example, various disposable diapers such as a tape type and a pad type, and sanitary napkins.
- B Rear body, BS ... Solid gather, F ... Front body, SF ... Side flap part, 10 ... Interior body, 11 ... Top sheet, 12 ... Liquid-impermeable back side sheet, 13 ... Absorber, 13N ... Constricted part , 14 ... packaging sheet, 15 ... solid gathering sheet, 16 ... solid gathering elastic member, 17 ... first slit, 18 ... second slit, 19 ... bridging slit, 20 ... exterior body, 20C ... folded portion, 21 ... side seal , 24 ... waist elastic member, 25 ... waist lower elastic member, 26, 28 ... curved elastic member, 26 ... dorsal curved elastic member, 28 ... ventral curved elastic member, 29 ... leg circumference line, 30 ... first 2 slit elastic member, 31... Flat gather elastic member.
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Abstract
Description
<請求項1記載の発明>
吸収体を備えた吸収性物品において、
前記吸収体における幅方向中間部に、前後方向に延びる第1スリットが一本又は幅方向に間隔を空けて複数本設けられた第1スリット形成領域を有しており、
前記第1スリット形成領域の前端側及び後端側のそれぞれから、幅方向両側に向かって側縁まで連続する第2スリットが設けられ、
前記第2スリットの連続方向と交差し、前記第2スリットが閉じる方向に収縮力を作用する第2スリット用弾性部材が設けられている、
ことを特徴とする使い捨ておむつ。 The present invention that has solved the above problems is as follows.
<Invention of
In an absorbent article provided with an absorber,
In the intermediate portion in the width direction of the absorber, there is a first slit forming region in which one or more first slits extending in the front-rear direction are provided at intervals in the width direction;
A second slit that is continuous from each of the front end side and the rear end side of the first slit forming region to the side edge toward both sides in the width direction is provided,
An elastic member for a second slit is provided that intersects the continuous direction of the second slit and acts on a contraction force in a direction in which the second slit is closed;
A disposable diaper characterized by that.
本発明の吸収体では、第2スリット用弾性部材の収縮力により第2スリットが一部又は完全に閉じて、第1スリット形成領域の幅方向両側の前後方向長さが短くなるのに伴い、第1スリット形成領域に沿って折れ曲がることにより、吸収体がほぼ舟形に変形する。したがって、第2スリットの幅が狭くなる又はスリットの両側が接触することにより、第2スリットを横断する方向の液拡散性が良好となり、第2スリットに沿う方向の液拡散が抑制されるためいわゆる横漏れ防止効果に優れるようになるとともに、第1スリット及び第2スリットの変形作用が組み合わさって全体として舟形に変形するため、フィット性や漏れ防止効果に優れたものとなる。 (Function and effect)
In the absorbent body of the present invention, the second slit is partially or completely closed by the contraction force of the second slit elastic member, and the longitudinal length on both sides in the width direction of the first slit forming region is shortened. By bending along the first slit forming region, the absorber is deformed into a boat shape. Accordingly, when the width of the second slit is reduced or both sides of the slit are in contact with each other, the liquid diffusibility in the direction crossing the second slit is improved, and the liquid diffusion in the direction along the second slit is suppressed, so-called. While it becomes excellent in the side leak prevention effect, since it deform | transforms into a boat shape as a whole combining the deformation | transformation action of a 1st slit and a 2nd slit, it becomes what was excellent in fit property and the leak prevention effect.
前記第1スリット形成領域は、幅方向に間隔を空けて設けられた二本の前記第1スリットからなり、
前記第2スリットは、幅方向一方の第1スリットから、吸収体の幅方向一方の側縁まで連続するものと、幅方向他方の第1スリットから、吸収体の幅方向他方の側縁まで連続するものとからなる、
請求項1記載の使い捨ておむつ。 <Invention of Claim 2>
The first slit forming region is composed of two first slits provided at intervals in the width direction,
The second slit is continuous from one first slit in the width direction to one side edge in the width direction of the absorber and the second slit is continuous from the other first slit in the width direction to the other side edge in the width direction of the absorber. Consisting of what to do,
The disposable diaper according to
このように第1スリットを二本とすると、第1スリット間の領域に対して、第2スリットの領域が立ち上がって舟形となる。よって、よりフィット性に優れるようになる。 (Function and effect)
When the first slits are two in this way, the region of the second slit rises to form a boat shape with respect to the region between the first slits. Therefore, it becomes more excellent in fit.
前記二本の第1スリットを幅方向に繋ぐ架橋スリットを有しており、この架橋スリットの隙間幅の総和が前記第2スリットの隙間幅の総和よりも短い、請求項1又は2記載の使い捨ておむつ。 <Invention of Claim 3>
The disposable according to
このような架橋スリットを設けることにより、二本の第1スリット及びその幅方向両側の第2スリットが繋がるため、前述した製造時のマスクにおいて、主スリットパターンを補助スリットパターン(第2スリット及び架橋スリットを形成するためのパターン)を介して幅方向両側から支持することができるため、主スリットパターンをより強固に支持することが可能となる。また、架橋スリットの隙間幅の総和が短いことにより、前述の舟形形状となり易い。 (Function and effect)
By providing such a bridging slit, the two first slits and the second slits on both sides in the width direction are connected, so that the main slit pattern is the auxiliary slit pattern (second slit and bridging in the mask at the time of manufacture described above). The main slit pattern can be supported more firmly because it can be supported from both sides in the width direction via the pattern for forming the slit). Moreover, since the sum total of the clearance width of a bridge | crosslinking slit is short, it is easy to become the above-mentioned boat shape.
表面の幅方向両側に、肌側に立ち上がる立体ギャザーが腹側から背側まで前後方向に沿って延在されており、この立体ギャザーは前後方向に延びる立体ギャザー弾性部材を有しており、この立体ギャザー弾性部材における少なくとも前記第2スリットと交差する部分が、前記第2スリット用弾性部材として機能する、請求項1~3のいずれか1項に記載の使い捨ておむつ。 <Invention of Claim 4>
A three-dimensional gather that stands on the skin side is extended along the front-rear direction from the abdominal side to the back side on both sides in the width direction of the surface, and this three-dimensional gather has a three-dimensional gather elastic member that extends in the front-rear direction. The disposable diaper according to any one of
第2スリット用弾性部材は、専用の弾性部材を設けることもできるが、このように立体ギャザー弾性部材を利用すると好ましい。 (Function and effect)
As the second slit elastic member, a dedicated elastic member may be provided, but it is preferable to use the three-dimensional gather elastic member in this way.
吸収体の幅方向両側に突出するサイドフラップ部を有するとともに、このサイドフラップ部に前後方向に延びる平面ギャザー弾性部材を有しており、この平面ギャザー弾性部材における少なくとも前記第2スリットと交差する部分が、前記第2スリット用弾性部材として機能する、請求項1~4のいずれか1項に記載の使い捨ておむつ。 <Invention of Claim 5>
It has a side flap part which protrudes in the width direction both sides of an absorber, and has a plane gather elastic member extended in the direction of order in this side flap part, and a part which intersects at least the 2nd slit in this plane gather elastic member The disposable diaper according to any one of
第2スリット用弾性部材は、専用の弾性部材を設けることもできるが、このように平面ギャザー弾性部材を利用すると好ましい。 (Function and effect)
The second slit elastic member may be provided with a dedicated elastic member, but it is preferable to use the flat gather elastic member in this way.
前記第2スリット用弾性部材として、前記吸収体の表側及び裏側の少なくとも一方に、前記第2スリットと交差するように前後方向に延びる弾性部材を備えている、請求項1~5のいずれか1項に記載の使い捨ておむつ。 <Invention of Claim 6>
The elastic member for the second slit is provided with an elastic member extending in the front-rear direction so as to intersect the second slit on at least one of the front side and the back side of the absorber. The disposable diaper described in the item.
このような位置に第2スリット用弾性部材を備えると、第2スリットに対して直接的に収縮力が作用するため、上述の変形及びその維持作用に優れるようになる。 (Function and effect)
When the elastic member for the second slit is provided at such a position, the contraction force acts directly on the second slit, so that the above-described deformation and its maintaining action are excellent.
前記第2スリットの隙間幅が3~8mmとされている、請求項1~6のいずれか1項に記載の使い捨ておむつ。 <Invention of Claim 7>
The disposable diaper according to any one of
第2スリットの隙間は狭すぎると前述の変形作用が小さくなり、広過ぎると前述の変形状態においても隙間が大きく開くため、第2スリットを横断する方向の液拡散性が低下する。よって、上記範囲内とすることが好ましい。 (Function and effect)
If the gap between the second slits is too narrow, the above-described deformation action is reduced. If the gap is too wide, the gap is greatly opened even in the above-described deformation state. Therefore, it is preferable to be within the above range.
図1~図7はパンツタイプ使い捨ておむつを示している。このパンツタイプ使い捨ておむつ(以下、単におむつともいう。)は、前身頃F及び後身頃Bを一体的に形成する外装体20と、前身頃Fから後身頃Bにわたるように外装体20の内面に固定された内装体10とを有しており、内装体10は液透過性表面シート11と液不透過性裏面側シート12との間に吸収体13が介在されてなるものである。製造に際しては、外装体20の内面(上面)に対して内装体10の裏面がホットメルト接着剤などの接合手段によって接合(図2の点模様部分)された後に、内装体10および外装体20が前身頃F及び後身頃Bの境界である前後方向(縦方向)中央で折り畳まれ、その両側部が相互に熱溶着またはホットメルト接着剤などによって接合されてサイドシール部21が形成されることによって、ウエスト開口及び左右一対のレッグ開口が形成されたパンツタイプ使い捨ておむつとなる。 Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The term “elongation rate” means a value when the natural length is 100%. Moreover, the dot pattern part in a figure has shown joining means, such as a hot-melt-adhesive.
1 to 7 show a pants-type disposable diaper. This pants-type disposable diaper (hereinafter also simply referred to as a diaper) has an
内装体10は、図4~図6に示すように、不織布などからなる液透過性表面シート11と、ポリエチレン等からなる液不透過性裏面側シート12との間に、吸収体13を介在させた構造を有しており、表面シート11を透過した***液を吸収保持するものである。内装体10の平面形状は特に限定されないが、図示形態のように略長方形とすることが一般的である。 (Structural example of interior body)
As shown in FIGS. 4 to 6, the
吸収体13の全体形状は、股間部分に前後両側よりも幅の狭い括れ部分13Nを有する略砂時計状に形成されているが、長方形状等、適宜の意形状とすることができる。括れ部分13Nの寸法は適宜定めることができるが、括れ部分13Nの前後方向長さはおむつ全長の20~50%程度とすることができ、その最も狭い部分の幅は吸収体13の全幅の40~60%程度とすることができる。このような括れ部分13Nを有する場合において、内装体10の平面形状が略長方形とされていると、内装体10における吸収体13の括れ部分13Nと対応する部分に、吸収体13を有しない余り部分が形成される。
The overall shape of the
外装体20は、図4~図6にも示されるように、それぞれ不織布等からなる押えシート20A及びバックシート20Bからなる2層構造とされ、押えシート20Aとバックシート20Bとの間、及びバックシート20Bをウエスト開口縁で内面側に折り返してなる折り返し部分20Cの不織布間に各種弾性部材が配設され、伸縮性が付与されている。平面形状は、中間両側部にそれぞれレッグ開口部を形成するために形成された凹状の脚周りライン29により、全体として擬似砂時計形状をなしている。 (External body structure example)
As shown in FIGS. 4 to 6, the
図1及び図4にも示されるように、外装体20の内面上に取り付けられた内装体10の前後端部をカバーし、且つ内装体10の前後縁からの漏れを防ぐために、前後押えシート50,60が設けられていても良い。図示形態について更に詳細に説明すると、前押えシート50は、前身頃F内面のうちウエスト側端部の折り返し部分20Cの内面から内装体10の前端部と重なる位置まで幅方向全体にわたり延在しており、後押えシート60は、後身頃B内面のうちウエスト側端部の折り返し部分20Cの内面から内装体10の後端部と重なる位置まで幅方向全体にわたり延在している。前後押えシート50,60の股下側縁部に幅方向の全体にわたり(中央部のみでも良い)若干の非接着部分を設けると、接着剤が食み出ないだけでなく、この部分を表面シートから若干浮かせて防漏壁として機能させることができる。 (Front / rear presser sheet)
As shown in FIGS. 1 and 4, in order to cover the front and rear end portions of the
特徴的には、図1~図5に示すように、吸収体13における幅方向中間部に、前後方向に延びる第1スリット17が一本形成されており、この第1スリット17の前端側及び後端側のそれぞれから、幅方向両側に向かって側縁まで連続する第2スリット18が設けられるとともに、第2スリット用弾性部材30が第2スリット18の連続方向と交差し、第2スリット18が閉じる方向に収縮力を作用するを構成している。これにより、本形態の吸収体13では、第2スリット用弾性部材30の収縮力により第2スリット18が図9(a)に示すように一部又は完全に閉じて、第1スリット17の幅方向両側の前後方向長さが短くなるのに伴い、図9(b)、(c)に示すように第1スリット17に沿って折れ曲がることにより、吸収体13がほぼ舟形に変形する。したがって、第2スリット18の幅が狭くなる又はスリットの両側が接触することにより、第2スリット18を横断する方向の液拡散性が良好となり、第2スリット18に沿う方向の液拡散が抑制されるためいわゆる横漏れ防止効果に優れるようになるとともに、第1スリット17及び第2スリット18の変形作用が組み合わさって全体として舟形に変形するため、フィット性や漏れ防止効果に優れたものとなる。 (About the slit of the absorber)
Characteristically, as shown in FIGS. 1 to 5, one
Claims (7)
- 吸収体を備えた吸収性物品において、
前記吸収体における幅方向中間部に、前後方向に延びる第1スリットが一本又は幅方向に間隔を空けて複数本設けられた第1スリット形成領域を有しており、
前記第1スリット形成領域の前端側及び後端側のそれぞれから、幅方向両側に向かって側縁まで連続する第2スリットが設けられ、
前記第2スリットの連続方向と交差し、前記第2スリットが閉じる方向に収縮力を作用する第2スリット用弾性部材が設けられている、
ことを特徴とする使い捨ておむつ。 In an absorbent article provided with an absorber,
In the intermediate portion in the width direction of the absorber, there is a first slit forming region in which one or more first slits extending in the front-rear direction are provided at intervals in the width direction;
A second slit that is continuous from each of the front end side and the rear end side of the first slit forming region to the side edge toward both sides in the width direction is provided,
An elastic member for a second slit is provided that intersects the continuous direction of the second slit and acts on a contraction force in a direction in which the second slit is closed;
A disposable diaper characterized by that. - 前記第1スリット形成領域は、幅方向に間隔を空けて設けられた二本の前記第1スリットからなり、
前記第2スリットは、幅方向一方の第1スリットから、吸収体の幅方向一方の側縁まで連続するものと、幅方向他方の第1スリットから、吸収体の幅方向他方の側縁まで連続するものとからなる、
請求項1記載の使い捨ておむつ。 The first slit forming region is composed of two first slits provided at intervals in the width direction,
The second slit is continuous from one first slit in the width direction to one side edge in the width direction of the absorber and the second slit is continuous from the other first slit in the width direction to the other side edge in the width direction of the absorber. Consisting of what to do,
The disposable diaper according to claim 1. - 前記二本の第1スリットを幅方向に繋ぐ架橋スリットを有しており、この架橋スリットの隙間幅の総和が前記第2スリットの隙間幅の総和よりも短い、請求項1又は2記載の使い捨ておむつ。 The disposable according to claim 1, further comprising a bridging slit connecting the two first slits in a width direction, wherein a total sum of gap widths of the bridging slits is shorter than a sum of gap widths of the second slits. Diapers.
- 表面の幅方向両側に、肌側に立ち上がる立体ギャザーが腹側から背側まで前後方向に沿って延在されており、この立体ギャザーは前後方向に延びる立体ギャザー弾性部材を有しており、この立体ギャザー弾性部材における少なくとも前記第2スリットと交差する部分が、前記第2スリット用弾性部材として機能する、請求項1~3のいずれか1項に記載の使い捨ておむつ。 A three-dimensional gather that stands on the skin side is extended along the front-rear direction from the abdominal side to the back side on both sides in the width direction of the surface, and this three-dimensional gather has a three-dimensional gather elastic member that extends in the front-rear direction. The disposable diaper according to any one of claims 1 to 3, wherein at least a portion of the three-dimensional gather elastic member that intersects the second slit functions as the second slit elastic member.
- 吸収体の幅方向両側に突出するサイドフラップ部を有するとともに、このサイドフラップ部に前後方向に延びる平面ギャザー弾性部材を有しており、この平面ギャザー弾性部材における少なくとも前記第2スリットと交差する部分が、前記第2スリット用弾性部材として機能する、請求項1~4のいずれか1項に記載の使い捨ておむつ。 It has a side flap part which protrudes in the width direction both sides of an absorber, and has a plane gather elastic member extended in the direction of order in this side flap part, and a part which intersects at least the 2nd slit in this plane gather elastic member The disposable diaper according to any one of claims 1 to 4, wherein the disposable diaper functions as the elastic member for the second slit.
- 前記第2スリット用弾性部材として、前記吸収体の表側及び裏側の少なくとも一方に、前記第2スリットと交差するように前後方向に延びる弾性部材を備えている、請求項1~5のいずれか1項に記載の使い捨ておむつ。 The elastic member for the second slit is provided with an elastic member extending in the front-rear direction so as to intersect the second slit on at least one of the front side and the back side of the absorber. The disposable diaper described in the item.
- 前記第2スリットの隙間幅が3~8mmとされている、請求項1~6のいずれか1項に記載の使い捨ておむつ。 The disposable diaper according to any one of claims 1 to 6, wherein a gap width of the second slit is 3 to 8 mm.
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US15/514,451 US10918531B2 (en) | 2014-09-30 | 2015-09-28 | Absorbent article |
KR1020177007877A KR102332789B1 (en) | 2014-09-30 | 2015-09-28 | Absorbent article |
EP15847647.3A EP3202382B1 (en) | 2014-09-30 | 2015-09-28 | Absorbent article |
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JP6198067B2 (en) * | 2014-09-26 | 2017-09-20 | 大王製紙株式会社 | Disposable diapers |
JP6006373B1 (en) * | 2015-06-08 | 2016-10-12 | ユニ・チャーム株式会社 | Pants-type absorbent article |
JP6359064B2 (en) * | 2016-09-29 | 2018-07-18 | 大王製紙株式会社 | pad |
JP6842893B2 (en) * | 2016-11-25 | 2021-03-17 | 大王製紙株式会社 | Pants type disposable diapers |
JP6933131B2 (en) * | 2017-12-26 | 2021-09-08 | 王子ホールディングス株式会社 | Absorbent article |
JP6600677B2 (en) * | 2017-12-28 | 2019-10-30 | ユニ・チャーム株式会社 | Pants-type absorbent article |
JP6596485B2 (en) * | 2017-12-28 | 2019-10-23 | ユニ・チャーム株式会社 | Pants-type absorbent article |
IT201800002181A1 (en) * | 2018-01-30 | 2019-07-30 | Gdm Spa | APPARATUS AND METHOD OF FORMING AN ABSORBENT PADDING |
JP7174534B2 (en) * | 2018-04-24 | 2022-11-17 | 花王株式会社 | absorbent pad |
US20200260798A1 (en) * | 2019-02-14 | 2020-08-20 | The Procter & Gamble Company | Pant-Type Wearable Article |
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